Product Overview
The HONEYWELL 1LS1-4PG is a general-purpose side rotary limit switch belonging to Honeywell’s MICRO SWITCH™ Compact LS Series. As a widely applied position detection component in industrial automation, the HONEYWELL 1LS1-4PG uses a side rotary roller lever actuator to contact moving mechanical components, converting physical displacement into electrical switching signals for object position, end-of-travel, or limit state detection. The switch features a single-pole double-throw (SPDT) double-break contact configuration, simultaneously providing normally open (NO) and normally closed (NC) outputs, allowing a single switch to control two circuits—a significant advantage in space-constrained industrial environments .
The HONEYWELL 1LS1-4PG design emphasizes reliability in harsh environments. Its epoxy-coated die-cast zinc housing provides excellent impact and corrosion resistance, while the IP67 protection rating ensures the switch operates reliably under dust, water spray, and even temporary immersion conditions . The compact non-plug-in body design makes it suitable for space-limited mounting positions, while the side rotary fixed lever with steel roller ensures precise detection of moving component positions and repeatable actuation consistency, maintaining stable performance over millions of operations .
The HONEYWELL 1LS1-4PG is rated for 10A current and up to 480VAC switching voltage, with an operating temperature range covering -29°C to +120°C, utilizing a PG13.5 conduit entry connection and meeting NEMA 1, 3, 4, 6, and 13 sealing requirements . Originally manufactured in the United Kingdom, the HONEYWELL 1LS1-4PG has become a reliable choice for position detection in machine tools, valve actuators, and food and beverage production lines through its rugged industrial-grade construction and proven snap-action mechanism .
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 1LS1-4PG |
| Manufacturer | Honeywell (MICRO SWITCH™) |
| Product Type | Side Rotary Limit Switch |
| Series | LS Series (Compact) |
| Actuator Type | Side Rotary Fixed Lever, Steel Roller |
| Contact Configuration | SPDT Double Break, 1NO + 1NC |
| Switching Action | Snap Action |
| Current Rating | 10 A |
| Maximum Switching Voltage | 480 VAC |
| Operating Force | 0.51 N |
| Protection Rating | IP67 |
| Housing Material | Epoxy-Coated Die-Cast Zinc |
| Conduit Entry | PG13.5 |
| Operating Temperature | -29°C to +120°C |
| Sealing Rating | NEMA 1, 3, 4, 6, 13 |
